JPS6451820A - Relay drive system - Google Patents
Relay drive systemInfo
- Publication number
- JPS6451820A JPS6451820A JP20947987A JP20947987A JPS6451820A JP S6451820 A JPS6451820 A JP S6451820A JP 20947987 A JP20947987 A JP 20947987A JP 20947987 A JP20947987 A JP 20947987A JP S6451820 A JPS6451820 A JP S6451820A
- Authority
- JP
- Japan
- Prior art keywords
- relay
- drive circuit
- rom
- fed
- constitution
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Electronic Switches (AREA)
Abstract
PURPOSE:To prevent malfunction at address change with simple constitution by applying an output of a ROM directly to a drive circuit as a drive signal. CONSTITUTION:A storage data of the ROM 1 is read according to an address 4 and fed tb a drive circuit 3 comprising an inverter I, a resistor R and a transistor(TR). The TR in the drive circuit 3 is turned on/off according to the output of the ROM 1 to control whether or not an operating current is fed to the relay 2. The relay 2 has an integration characteristic and even when the drive signal fed to the drive circuit 3 is changed, the state is not immediately changed and the time after the drive signal changes till the state of the relay 2 changes is far longer than the address change period. Thus, the malfunction of the relay at address change is prevented with economical constitution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20947987A JPS6451820A (en) | 1987-08-24 | 1987-08-24 | Relay drive system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP20947987A JPS6451820A (en) | 1987-08-24 | 1987-08-24 | Relay drive system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6451820A true JPS6451820A (en) | 1989-02-28 |
Family
ID=16573522
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP20947987A Pending JPS6451820A (en) | 1987-08-24 | 1987-08-24 | Relay drive system |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6451820A (en) |
-
1987
- 1987-08-24 JP JP20947987A patent/JPS6451820A/en active Pending
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